function playploepp() {
   if (bgsndAvail) bgsnd.src="media/ploepp10.mp3";
   else {
      document.embeds['ploepp1'].SetIsLooping(false);
      document.embeds['ploepp1'].Play();
   }
}

function stopploepp() {
   if (bgsndAvail) bgsnd.src="";
   else {
    document.embeds['ploepp1'].Rewind();
    document.embeds['ploepp1'].Stop();
   }
}

window.onload = function () {
    bgsnd = document.getElementsByTagName('BGSOUND')[0];
    bgsndAvail = (typeof(bgsnd.src)!='undefined');
}